The electronic store sold 4 laptops in one day. the total was $3,600. if each laptop cost the same amount how much did each cost

The length of a rectangle plus its width is 25 cm. the area is 156 square cm. what are the length and width of the rectangle? separate the answers with a comma.

Which of the following best describes the figure?

1. if events a and b are non-overlapping events, how do you find the probability that one or the other occurs? 2. what does it mean if p(a or b) equals 1?